Thrawn's Revenge is a large-scale mod for Empire at War: Forces of Corruption. It includes the events of the Galactic Civil War after Palpatine's death at Endor, up until the signing of the Pellaeon-Gavrisom treaty.
If you own the Steam version of EaW, you will have to complete extra steps to run the mod after installation. Please see the manual for these steps.

Ships like the Vindicator don't need it with only 3 tie's but the ships with many fighters like the aclimator,venetor,mtc and pretty much all the star destroyers definitely do.
After nvidia adds hyper-q to their gtx products and virtu mvp becomes more common you can have tons of fighters again. :)
These two increase gpu utilization by a lot through decreasing cpu dependence and disabling rendering redundancies.